Question

I need help on a Factoring problem. Its factoring a fraction, on top of another factoring fraction. Its in the comments

Answer 1

\[\huge\frac{\frac{30x^2+27x+6}{9x^2-49}}{\frac{30x+15}{30x-70}}\]

Answer 2

The size of those fraction bars is important. The top two appear to be the same length, and the third is smaller. Correct?

Answer 3

To factor the numerator of the top fraction, you would divide each number by 3 and get: 3(10x^2 + 9x +2)

Answer 4

no, the fracton bar on the top is supposed to be in the middle, i.e. it should be the top fraction normal bar, then solid black bar, then bottom fraction normal. @strawberry17 how would i do that?

Answer 5

\(\Huge \frac{30x^2+27x+6}{9x^2-49} \div\frac{30x+15}{30x-70}\)
\(\Huge =\frac{30x^2+27x+6}{9x^2-49} *\frac{30x-70}{30x+15}\)

Answer 6

its supposed to be:
\[\frac{30x^2+27x+6}{9x^2−49}\] over with the solid black line, \[\frac{30x+15}{30x−70}\]

Answer 7

Like I put, Andriod?

Answer 8

i don't understand what you did.

Answer 9

One fraction divided by another fraction.

Answer 10

i don't know. i tried to put it like it is in the book. thats what it says,

Answer 11

yes, but i get very confused with fraction.

Answer 12

Okay, Andriod, when we divide by a fraction, it's the same as multiplying by the reciprocal. That is, \(\div 2\) is the same as \(\large *\frac{1}{2}\)
\(\large \div\frac{2}{3}\) is the same as \(\large *\frac{3}{2}\)

Answer 13

etc.
So when we see
\(\huge\div \frac{30x+15}{30x-70}\)
it's easier for us if we rewrite it as \(\huge *\frac{30x-70}{30x+15}\)

Answer 14

ik that much, but i don't know what to do wit hthe FRACTIONS, i.e. i know the KFC method, but what/how do i factor the fraction?

Answer 15

@andriod09 do you understand how I factored out 3 from the numerator of the top fraction?

Answer 16

What does KFC stand for?

Answer 17

K=keep
F=flip
C=change
@strawberry17 i have not a clue.

Answer 18

Andriod, look for a common factor.
With \(30x^2 + 27x + 6\) you can notice that
30=3*10
27= 3*9
6= 3*2
so they have a common factor of 3.

Answer 19

I agree, Strawberry. Rewriting it is good, but it's good to keep it factored as it is.

Answer 20

i don't understand. \[:(\]\[:L\]\[:/\]

Answer 21

yes. i undertand what factoring is. I don't konw how to factor a fraction. hence, why this post is here.

Answer 22

FACTORING A FRACTION IS ALL I DO NOT KNOW. I KNOW HOW TO FACTOR SOMETHING LIKE THIS: \[x^2+3-27\]

Answer 23

Factoring a fraction is not different from factoring normally.
Just look at the top and factor it normally.
Then look at the bottom and factor it normally.

Answer 24

I DON'T KNOW HOW. :/

Answer 25

I DON'T KNOW HOW TO FACTOR A FRACTION.

Answer 26

just tell me how to do this problem please, i am getting really annoyed.